1. Your resin needs more time to cure
While resin is curing, it turns semi-solid (think gelatin) but is soft and pliable. In other words, it looks like it’s done curing, but it may not be.
Double-check the cure time for your resin. If you’re lucky, you simply need to give it more time to cure.
⭐️ BONUS: This explains how long it takes resin to dry
2. You poured resin in a thin layer
It can be normal for some resins, when poured in a thin layer, to be bendy. Some resins, especially doming resins, can be flexible after the full cure time. It may get harder by giving it more curing time, but that doesn’t always work. If you want to give the resin extra time to cure, make sure it stays warm and give it another two to seven days to fully cure.
⭐️ BONUS: If you aren’t sure what the ideal resin curing temperature is, this will help: Resin mixing and curing temperatures
3. Your resin is retaining moisture
⭐️ BONUS: Here’s how to color epoxy resin so you can avoid this.
4. It may be normal for this resin
Some resins just don’t cure hard. They’ll be bendy when poured in a thin layer or can be dented with a fingernail for thicker pours.
⭐️ BONUS: Get help choosing the best epoxy for your project to avoid your bendy resin problems.
5. Your resin may be old
Old resin kits that you’ve forgotten about collect moisture, especially if they haven’t been stored properly. That extra moisture makes your resin cure bendy.
⭐️ BONUS: Learn how to store resin so it’s at its best.
Here is a recent video I made where I answer the question why is my resin bendy —
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